<template>
  <div>
    <!--面包屑导航-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!--卡片视图-->
    <el-card class="box-card">
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" class="input-with-select" v-model="queryInfo.query" clearable
                    @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <el-table :data="userlist" style="width: 100%" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <el-button type="primary" size="mini" icon="el-icon-edit" @click="showEditDialog(scope.row.id)"></el-button>
            <el-button type="danger" size="mini" icon="el-icon-delete"
                       @click="removeUserById(scope.row.id)"></el-button>
            <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" size="mini" icon="el-icon-setting" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 20, 30]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
      <!--添加用户对话框-->
      <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClosed">
        <el-form :model="addForm" :rules="formRules" ref="addFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>

      <!--修改用户对话框-->
      <el-dialog
        title="修改用户信息"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="editDialogClosed">
        <el-form :model="editForm" :rules="formRules" ref="editFormRef" label-width="70px">
          <el-form-item label="用户名">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUser">确 定</el-button>
        </span>
      </el-dialog>
    </el-card>
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <div>
        <p>当前的用户：{{userInfo.username}}</p>
        <p>当前的角色：{{userInfo.role_name}}</p>
        <p>分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in roleslist"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
  export default {
    name: 'Users',
    data() {
      var checkEmail = (rule, value, callback) => {
        const regEmail = /^\w+@\w+(\.\w+)+$/
        if (regEmail.test(value)) {
          return callback()
        }
        callback(new Error('请输入合法的邮箱'))
      }
      var checkMobile = (rule, value, callback) => {
        const regMobile = /^1[34578]\d{9}$/
        if (regMobile.test(value)) {
          return callback()
        }
        callback(new Error('请输入合法的手机号'))
      }
      return {
        //获取用户列表的参数对象
        queryInfo: {
          query: '',
          //当前的页数
          pagenum: 1,
          //当前每页显示多少条数据
          pagesize: 10
        },
        userlist: [],
        total: 0,
        //控制添加用户对话框的显示与隐藏
        addDialogVisible: false,
        //控制修改用户对话框的显示与隐藏
        editDialogVisible: false,
        //添加用户的表单数据
        addForm: {
          username: '',
          password: '',
          email: '',
          mobile: ''
        },
        //添加用户的验证规则对象
        formRules: {
          username: [
            { required: true, message: '请输入用户名', trigger: 'blur' },
            { min: 3, max: 10, message: '用户名的长度在3~10个字符', trigger: 'blur' }
          ],
          password: [
            { required: true, message: '请输入密码', trigger: 'blur' },
            { min: 6, max: 15, message: '用户名的长度在6~15个字符', trigger: 'blur' }
          ],
          email: [
            { required: true, message: '请输入邮箱', trigger: 'blur' },
            { validator: checkEmail, trigger: 'blur' }
          ],
          mobile: [
            { required: true, message: '请输入手机号', trigger: 'blur' },
            { validator: checkMobile, trigger: 'blur' }
          ]
        },
        editForm: {},
        //控制分配角色对话框的显示与隐藏
        setRoleDialogVisible: false,
        //需要被分配角色的用户信息
        userInfo: {},
        //所有的角色列表
        roleslist: [],
        //已选中的角色ID
        selectedRoleId: ''
      }
    },
    created() {
      this.getUserList()
    },
    methods: {
      async getUserList() {
        const { data: res } = await this.$http.get('users', { params: this.queryInfo })
        console.log(res)
        if (res.meta.status !== 200) {
          return this.$message.error('获取用户列表失败')
        }
        this.userlist = res.data.users
        this.total = res.data.total
      },
      //监听pagesize改变的事件
      handleSizeChange(newSize) {
        console.log(newSize)
        this.queryInfo.pagesize = newSize
        this.getUserList()
      },
      //监听页码值改变
      handleCurrentChange(newPage) {
        console.log(newPage)
        this.queryInfo.pagenum = newPage
        this.getUserList()
      },
      //监听switch开关状态
      async userStateChanged(userInfo) {
        console.log(userInfo)
        const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
        if (res.meta.status !== 200) {
          userInfo.mg_state = !userInfo.mg_state
          return this.$message.error('更新用户状态失败')
        }
        this.$message.success('更新状态成功')

      },
      //监听添加用户对话框的关闭事件
      addDialogClosed() {
        this.$refs.addFormRef.resetFields()
      },
      //监听修改用户对话框的关闭时间
      editDialogClosed() {
        this.$refs.editFormRef.resetFields()
      },
      addUser() {
        this.$refs.addFormRef.validate(async valid => {
          if (!valid) return
          const { data: res } = await this.$http.post('users', this.addForm)
          if (res.meta.status !== 201) {
            return this.$message.error('添加用户失败')
          }
          this.$message.success('添加用户成功！')
          this.addDialogVisible = false
          this.getUserList()
        })
      },
      //展示编辑用户的对话框
      async showEditDialog(id) {
        const { data: res } = await this.$http.get('users/' + id)
        if (res.meta.status !== 200) {
          return this.$message.error('获取用户失败！')
        }
        this.editForm = res.data
        this.editDialogVisible = true

      },
      editUser() {
        this.$refs.editFormRef.validate(async valid => {
          if (!valid) return
          const { data: res } = await this.$http.put('users/' + this.editForm.id, {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          })
          if (res.meta.status !== 200) {
            return this.$message.error('修改用户失败！')
          }
          this.editDialogVisible = false
          this.getUserList()
          this.$message.success('更新用户成功！')
        })
      },
      async removeUserById(id) {
        //询问用户是否删除数据
        const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
          }
        ).catch(err => err)
        console.log(confirmResult)
        if (confirmResult !== 'confirm') {
          return this.$message.info('已取消删除')
        }
        const { data: res } = await this.$http.delete('users/' + id)
        if (res.meta.status !== 200) {
          return this.$message.error('删除用户失败！')
        }
        this.$message.success('删除用户成功！')
        this.getUserList()
      },
      async setRole(userInfo) {
        this.userInfo = userInfo
        //获取所有的角色列表
        const { data: res } = await this.$http.get('roles')
        if (res.meta.status !== 200) {
          return this.$message.error('获取角色列表失败！')
        }
        this.roleslist = res.data
        this.setRoleDialogVisible = true
      },
      //分配角色
      async saveRoleInfo() {
        if (!this.selectedRoleId) {
          return this.$message.error('请选择角色')
        }
        const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
        if (res.meta.status !== 200) {
          return this.$message.error('更新角色失败！')
        }
        this.$message.success('更新角色成功！')
        this.getUserList()
        this.setRoleDialogVisible = false
      },
      //分配角色对话框的关闭时间
      setRoleDialogClosed(){
        this.selectedRoleId=''
        this.userInfo={}
      }

    }
  }
</script>

<style scoped lang="less">

</style>
